Sick of being unwanted, Homer befriends a man who works as a roofer. However, no one else can see him and Homer's insistence that the roofer does exist prompts everyone to think he has gone crazy (again).
* NotSoImaginaryFriend: Ray Magini. The instances of [[Series/SesameStreet Snuffy]]-esque bad timing aside, there are reasons why specific people couldn't see Ray:
** The bartender had an eyepatch on the eye that saw Ray.
** Flanders couldn't see him because he was behind the chimney.
** Bart... ...well, see AssPull.
* NiceJobBreakingItHero / OhCrap: Everyone reacts appropriately after Ray shows up ''after'' Homer finished his treatment (for seeing the "imaginary" Ray).
* SignificantAnagram: Ray Magini is an anagram for "Imaginary". It's lampshaded by Lisa near the end. [[RedHerring And then Ray shows up.]]
* [[WithFriendsLikeThese With Family Like This]]: Marge and the family bitch Homer out like crazy about the house and stuff that happens due to the rain and when he gets a roofer to fix the roof and he takes forever to get back and fix the roof, they commit Homer to months of shock therapy because they jump to the conclusion that he's gone crazy.